The Challenges of Working a Flexible Schedule

Day shift has to start after five thirty in the morning and night shift starts at three. They can put their hours in how they see fit up to a maximum of twelve hours, but not more than five hour shifts. After 12 hours there's a bit of a burnout that we want to prevent - so could you work five hours one day and then ten hours a different day or do you need like kind of the same thing each day? The guys come and go as they as they need to and as they please... We don't manage the people. They manage themselves. I can walk out on the floor right now and not exactly know who's going to be there but we don't